troubleshooting Question

Delivery Status Notification (Failure)

Avatar of Sravan p
Sravan p asked on
NetworkingEmail ClientsEmail ServersDNSEmail Protocols
3 Comments1 Solution148 ViewsLast Modified:
Message blocked
Your message has been blocked by user@snf.fr. See technical details below for more information.

The response from the remote server was:
451 #4.1.8 Domain of sender address <user@domain.com> does not resolve
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